[bullfrog]

Carpeperdiem, when I upgraded from X-Payments 1.04 to 1.05, I did what you are considering. I have 5 stores that use X-Payments. I consider it risky to commit to widespread use of a new version of ANY software before sampling the new version for a while, so I temporarily had both versions running (same site, different directories) while I made sure that 1.05 was ok. I waited maybe a week before moving all stores over to 1.05.

I plan to do the same this week when I make the move to 1.06. I'm looking forward to fewer dupe orders and not finished orders. I also plan to try the 4.5.5 iframe on one site, and if all goes well like you I'll be spending time (months?) upgrading all 5 modified, templated stores to 4.5.5. I hope they stay there a while.

Our business was down this past holiday season. I don't like anything that spooks a customer during checkout.